– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Thu 20 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Thu 20 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Thu 20 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 43mm), heaviest during Sun morning. Mild temperatures (max 9°C on Sat morning, min 4°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryMild with moderate rain (total 20mm) on Sun afternoon, Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 3°C on Sun afternoon, min -1°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  |  |  |  | |  | | | |  | |
rain shwrs | some clouds | cloudy | light rain | light rain | cloudy | light rain | heavy rain | heavy rain | light snow | rain shwrs | rain shwrs | clear | some clouds | cloudy | cloudy | mod. snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 6 | |
0.1 | — | — | 0.5 | 0.3 | — | 0.9 | 18 | 24 | 7 | 2 | 0.9 | — | — | — | — | — | |
max°C | 6 | 5 | 6 | 6 | 8 | 9 | 8 | 8 | 6 | 3 | 2 | 3 | 1 | -1 | 2 | 2 | 2 |
min°C | 5 | 4 | 6 | 6 | 7 | 8 | 8 | 7 | 5 | 2 | 0 | 3 | -1 | -1 | 1 | 0 | 1 |
3 | 4 | 6 | 5 | 6 | 8 | 6 | 5 | 2 | -1 | 0 | 2 | -1 | -1 | 1 | -2 | -1 | |
1500 | 1600 | 1800 | 1700 | 2100 | 2100 | 2000 | 1800 | 1450 | 950 | 750 | 850 | 700 | 0 | 700 | 850 | 600 | |
Cloud base (m) | 750 | 800 | 2550 | 850 | 800 | 750 | 850 | 550 | 550 | 600 | 600 | 700 | 750 | 700 | 650 | 2550 | 1000 |
 | — | — | 7:24 | — | — | 7:26 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — |
 | 4:22 | — | — | 4:21 | — | — | 4:20 | — | — | 4:19 | — | — | 4:17 | — | — | 4:17 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 43mm), heaviest during Sun morning. Mild temperatures (max 9°C on Sat morning, min 4°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mild with moderate rain (total 20mm) on Sun afternoon, Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 3°C on Sun afternoon, min -1°C on Mon afternoon). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.